They're used quite differently and that should be the characteristic defining them. A hairdryer and a car are both things built around a motor - yet they are ha

They're used quite differently and that should be the characteristic defining them. A hairdryer and a car are both things built around a motor - yet they are hardly the same. Lots of general purpose computing chips exist in all kind of devices, yet that doesn't make them computers. The great majority of people uses smartphones still mainly a communications device, just like they used phones before.